Ovulation usually occurs about 14 days before the next menstrual period, and the time is relatively fixed. In women with regular menstrual cycles, ovulation can be predicted based on the time of menstruation, which is usually about 14 days before the next menstrual period. After ovulation, the egg can survive in the fallopian tube for 12-48 hours. If it meets with sperm, it can unite and form a fertilized egg; if it fails to meet sperm, it will gradually wither away and then be expelled from the body. Usually, the male sperm can maintain fertilization for 2-3 days after entering the female reproductive tract. Therefore, in order to increase the chance of conception, intercourse can be reasonably arranged from 5 days before to 4 days after the day of ovulation, i.e. during the ovulation period. If there are no problems affecting fertility, you can start to actively prepare for pregnancy, such as avoiding tobacco and alcohol, taking regular rest and rest, and avoiding staying up late to keep your body in the best condition.